Link Mfg. Ltd. 223 15th St. N.E.

Sioux Center, IA USA 51250-2120

(712) 722-4874 Fax (712) 722-4876

QUESTIONS? CALL CUSTOMER

SERVICE 1-800-222-6283

081217 80000209

������������������������������������������������������������������������������������������������

����������������������������������������

AIR CONTROL KIT (1350-1004)

OPTIONAL: For quicker and easier installation an additional Installation Kit (Link part # 800A0014) provides a complete set of fasteners, connectors, airline and wire for use with this kit. For details call Link. Customer Service at 1-800-222-6283.

ITEM PART # PART DESCRIPTION QTY 1 1301-0555 VALVE-SOLENOID, ASSEMBLY 1 2 1301-0084 VALVE-PRESSURE PROTECTION 1

3 1301-0546 VALVE-QUICK RELEASE 1

4 1350-1011 AIR CONTROL BOX ASSEMBLY 1

5 1500-1318 PLATE-SWITCH, LIFT 1

6 1505-0350 SWITCH-TOGGLE, HI STEER 1

7 1505-0351 RELAY 1

8 1505-0353 CONNECTOR-PUSH-ON, FEMALE 4

9 1505-0354 RELAY BASE 1

-1-

PLUMBING INSTRUCTIONS

A. Connect pressure protection valve directly to the air supply tank on the truck. IMPORTANT: Make sure direction of flow for the system matches flow indicator on the pressure protection valve.

B. Securely mount the Solenoid Valve Assembly to the truck in a rela-tively protective location, making sure that the open ends of the ex-haust lines are oriented down.

C. Loosely mount the Air Control Box Assembly to the truck exterior in desired location for driver convenience, making sure air controls are easily accessible.

D. Securely mount the Exhaust Valve to the suspension cross-member.

E. Route all airline to your suspension using plumbing schematic in Fig-ures 1 and 2.

F. Secure control box and any loose components to the truck.

ELECTRICAL INSTRUCTIONS

CAUTION: Always disconnect the battery while working with the ve-hicle’s electrical system.

A. Mount the relay base to the truck in a protective location. NOTE: If there is an open slot in the truck’s relay panel and you wish to wire your relay through this panel you will not need the supplied relay base.

B. Make all wiring connections to fuse, relay, and truck as shown in Fig-ure 3, crimping Push-On Connectors to wires and mounting them in the supplied relay base. NOTE: Make sure the 12 VDC source is switched (turns off with the key)

C. Make connections to the toggle switch from terminal 87a on the relay, and the blue wire from the solenoid valve.

D. Attach the brown wire from the solenoid valve to a reliable grounding point on the truck. Attachment to the truck frame is NOT sufficient for a trouble-free ground. NOTE: The yellow wire with a green stripe is not used.

E. Mount the toggle switch and toggle switch plate to the interior of the truck in a desired location. NOTE: Make sure that lift axle position correlates with “Raise”/”Lower” position on toggle switch plate (tab on toggle switch plate may need to be removed).

F. When all electrical connections have been made, reconnect the bat-tery, pressurize the system and tighten any fittings that are leaking.

OPTION 1: STEERABLE, DEFAULT UP

FIG. 3

FIG. 1

NOTES: 1) If you are not integrating the optional Link Mfg. Installation Kit: use 3/8” DOT airline for all plumbing between fittings;

use brass DOT fittings for all plumbing connections; use 14-gage primary wire for all electrical connections. 2) Considerations should be made to route all wiring and airline in protective locations away from any moving parts. 3) Cable ties or other fastening devices may be required to secure airline, wire and/or fittings to truck/suspension. 4) Apply Permatex #807 or comparable anaerobic pipe thread sealant to fill three exterior pipe threads on brass fittings

and tighten 1-½ revolutions beyond hand tight.

IMPORTANT: When installing your kit use the instructions for the correct option as determined below: OPTION 1: Kit will be installed on a steerable suspension in which the driver wants the lift axle to be up when ignition is off. OPTION 2: Kit will be installed on a steerable suspension in which the driver wants the lift axle to be down when ignition is off. OPTION 3: Kit will be installed on a non-steer suspension in which the driver wants the lift axle to be up when ignition is off. OPTION 4: Kit will be installed on a non-steer suspension in which the driver wants the lift axle to be down when ignition is off.

FIG. 2 ITEM PART DESCRIPTION 1 VALVE-SOLENOID, ASSEMBLY 2 VALVE-PRESSURE PROTECTION 3 VALVE-QUICK RELEASE 4 REGULATOR-AIR PRESSURE 5 GAUGE-AIR PRESSURE

-2-

PLUMBING INSTRUCTIONS

A. Connect pressure protection valve directly to the air supply tank on the truck. IMPORTANT: Make sure direction of flow for the system matches flow indicator on the pressure protection valve.

B. Securely mount the Solenoid Valve Assembly to the truck in a rela-tively protective location, making sure that the open ends of the ex-haust lines are oriented down.

C. Loosely mount the Air Control Box Assembly to the truck exterior in desired location for driver convenience, making sure air controls are easily accessible.

D. Securely mount the Exhaust Valve to the suspension cross-member.

E. Route all airline to your suspension using plumbing schematic in Fig-ures 4 and 5.

F. Secure control box and any loose components to the truck.

ELECTRICAL INSTRUCTIONS

CAUTION: Always disconnect the battery while working with the ve-hicle’s electrical system.

A. Mount the relay base to the truck in a protective location. NOTE: If there is an open slot in the truck’s relay panel and you wish to wire your relay through this panel you will not need the supplied relay base.

B. Make all wiring connections to fuse, relay, and truck as shown in Fig-ure 6, crimping Push-On Connectors to wires and mounting them in the supplied relay base. NOTE: Make sure the 12 VDC source is switched (turns off with the key)

C. Make connections to the toggle switch from terminal 87, and terminal 30 on the relay. Also connect the blue wire from the solenoid valve to the toggle switch. IMPORTANT: Make sure that the toggle switch is wired so that the lift axle is down when the switch is off.

D. Attach the brown wire from the solenoid valve to a reliable grounding point on the truck. Attachment to the truck frame is NOT sufficient for a trouble-free ground. NOTE: The yellow wire with a green stripe is not used.

E. Mount the toggle switch and toggle switch plate to the interior of the truck in a desired location. NOTE: Make sure that lift axle position correlates with “Raise”/”Lower” position on toggle switch plate (tab on toggle switch plate may need to be removed).

F. When all electrical connections have been made, reconnect the bat-tery, pressurize the system and tighten any fittings that are leaking.

OPTION 2: STEERABLE, DEFAULT DOWN

FIG. 5 ITEM PART DESCRIPTION 1 VALVE-SOLENOID, ASSEMBLY 2 VALVE-PRESSURE PROTECTION 3 VALVE-QUICK RELEASE 4 REGULATOR-AIR PRESSURE 5 GAUGE-AIR PRESSURE

FIG. 4

FIG. 6

OPTION 3: NON-STEER,DEFAULT UP PLUMBING INSTRUCTIONS

A. Connect pressure protection valve directly to the air supply tank on the truck. IMPORTANT: Make sure direction of flow for the system matches flow indicator on the pressure protection valve.

B. Securely mount the Solenoid Valve Assembly to the truck in a rela-tively protective location, making sure that the open ends of the ex-haust lines are oriented down.

C. Loosely mount the Air Control Box Assembly to the truck exterior in desired location for driver convenience, making sure air controls are easily accessible.

D. Securely mount the Exhaust Valve to the suspension cross-member.

E. Route all airline to your suspension using plumbing schematic in Fig-ures 7 and 8.

F. Secure control box and any loose components to truck.

ELECTRICAL INSTRUCTIONS

CAUTION: Always disconnect the battery while working with the ve-hicle’s electrical system.

A. Make all wiring connections to fuse, truck, and toggle switch as shown in Figure 9. IMPORTANT: Make sure that the toggle switch is wired so that the lift axle is down when the switch is on.

B. Attach the brown wire from the solenoid valve to a reliable grounding point on the truck. Attachment to the truck frame is NOT sufficient for a trouble-free ground. NOTE: The yellow wire with a green stripe is not used. NOTE: Make sure the 12 VDC source is switched (turns off with the key).

C. Mount the toggle switch and toggle switch plate to the interior of the truck in a desired location. NOTE: Make sure that lift axle position correlates with “Raise”/”Lower” position on toggle switch plate (tab on toggle switch plate may need to be removed).

D. When all electrical connections have been made, reconnect the bat-tery, pressurize the system and tighten any fittings that are leaking.

OPTION 4: NON STEER, DEFAULT DOWN PLUMBING INSTRUCTIONS

A. Connect pressure protection valve directly to the air supply tank on the truck. IMPORTANT: Make sure direction of flow for the system matches flow indicator on the pressure protection valve.

B. Securely mount the Solenoid Valve Assembly to the truck in a rela-tively protective location, making sure that the open ends of the ex-haust lines are oriented down.

C. Loosely mount the Air Control Box Assembly to the truck exterior in desired location for driver convenience, making sure air controls are easily accessible.

D. Securely mount the Exhaust Valve to the suspension cross-member.

E. Route all airline to your suspension using plumbing schematic in Fig-ures 10 and 11.

F. Secure control box and any loose components to truck.

ELECTRICAL INSTRUCTIONS

(See electrical instructions for option 3)

FIG. 11

FIG. 9

FIG. 8

FIG. 7

-3- FIG. 10

ITEM PART DESCRIPTION 1 VALVE-SOLENOID, ASSEMBLY 2 VALVE-PRESSURE PROTECTION 3 VALVE-QUICK RELEASE 4 REGULATOR-AIR PRESSURE 5 GAUGE-AIR PRESSURE

ITEM PART DESCRIPTION 1 VALVE-SOLENOID, ASSEMBLY 2 VALVE-PRESSURE PROTECTION 3 VALVE-QUICK RELEASE 4 REGULATOR-AIR PRESSURE 5 GAUGE-AIR PRESSURE